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UBA - CienciaS • Ver Tema - Recuperatorio del segundo parcial - 17/07/2012
UBACS Q&A Foro WikiCS
Fecha actual 19 Abr 2024, 17:40

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Autor Mensaje
 Asunto: Recuperatorio del segundo parcial - 17/07/2012
NotaPublicado: 19 Jul 2012, 17:46 
Ayudante de Segunda

Registrado: 04 Ago 2011, 13:11
Mensajes: 51
Dejo el exámen del martes pasado.

Ejercicio 1. Sea numerable. Probar que es conexo.

Ejercicio 2. Sea un hiperplano en
Probar que tiene exactamente dos componentes conexas.

Ejercicio 3. Para cada consideramos



Probar que la serie de funciones
i) Converge puntualmente en si , y la convergencia es uniforme en semirectas cerradas que no contienen al 0.
ii) Converge uniformemente en si

Ejercicio 4. Sean espacios de Banach y sea

i) Probar que son equivalentes:
(1) es compacto para todo acotado.
(2) Dada acotada vale que tiene una subsucesión convergente.

Decimos que un operador es compacto si se cumple alguna de las propiedades anteriores.
ii) Probar que es compacto si y sólo si tiene dimensión finita.

Ejercicio 5. Sea un espacio métrico compacto y conexo. Sea una familia de funciones equicontinua. Supongamos que existe tal que es acotado.
Probar que es compacto.


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 Asunto: Re: Recuperatorio del segundo parcial - 17/07/2012
NotaPublicado: 19 Jul 2012, 17:56 
Ayudante de Segunda

Registrado: 04 Ago 2011, 13:11
Mensajes: 51
Que baile me comí... tremendo.

Se aceptan ideas sobre el 1. O el 2. O el 3. O el 4. O el 5.


Desconectado
 Perfil  
 
 Asunto: Re: Recuperatorio del segundo parcial - 17/07/2012
NotaPublicado: 20 Jul 2012, 22:02 
Ayudante de Segunda

Registrado: 04 Ago 2011, 13:11
Mensajes: 51
1)


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